bd7cb674391cf7779570544ce2b38ab9af123d2e5b3d00bc2e531e0527c04bf4

Analysis

max time kernel
208s
max time network
211s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
20-12-2023 03:19

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General

Target

Un_A.exe
Size

80KB
MD5

66034ab42eee7e5d2ba7139d668e8f37
SHA1

3a558e0b48e288a5d6980e3baa44b82481c2261c
SHA256

bd7cb674391cf7779570544ce2b38ab9af123d2e5b3d00bc2e531e0527c04bf4
SHA512

84cd7a3a33aa2f19f4b5f0e823906d982268f56bd81441d95ecc990f92c909b0f83dbdd6466a887075d450a8b0b802ca6d04a45ff7403918ac57e164159231d4
SSDEEP

1536:DmL/t9u39UJJHefluwDEuddYeIAhSoFN9RDewHUz4Jb2JZ:DmpI39URWuwDEudduAhJSw0z4Jba

Score

8^/10

evasion

Malware Config

Signatures

Modifies Windows Firewall 1 TTPs 3 IoCs

evasion

Windows Service

T1543.003

pid	Process
3348	netsh.exe
3996	netsh.exe
3748	netsh.exe

Deletes itself 1 IoCs

pid	Process
2056	Un_A.exe

Executes dropped EXE 1 IoCs

pid	Process
2056	Un_A.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1740	powershell.exe
1740	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1740	powershell.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2400 wrote to memory of 2056	2400	Un_A.exe	89
PID 2400 wrote to memory of 2056	2400	Un_A.exe	89
PID 2400 wrote to memory of 2056	2400	Un_A.exe	89
PID 2056 wrote to memory of 3348	2056	Un_A.exe	94
PID 2056 wrote to memory of 3348	2056	Un_A.exe	94
PID 2056 wrote to memory of 3348	2056	Un_A.exe	94
PID 2056 wrote to memory of 3996	2056	Un_A.exe	96
PID 2056 wrote to memory of 3996	2056	Un_A.exe	96
PID 2056 wrote to memory of 3996	2056	Un_A.exe	96
PID 2056 wrote to memory of 3748	2056	Un_A.exe	98
PID 2056 wrote to memory of 3748	2056	Un_A.exe	98
PID 2056 wrote to memory of 3748	2056	Un_A.exe	98
PID 2056 wrote to memory of 1740	2056	Un_A.exe	100
PID 2056 wrote to memory of 1740	2056	Un_A.exe	100
PID 2056 wrote to memory of 1740	2056	Un_A.exe	100

C:\Users\Admin\AppData\Local\Temp\Un_A.exe
"C:\Users\Admin\AppData\Local\Temp\Un_A.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2400
- C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe
  "C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe" _?=C:\Users\Admin\AppData\Local\Temp\
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:2056
- - C:\Windows\SysWOW64\netsh.exe
    netsh advfirewall firewall delete rule name="Falcon BMS 4.36"
    3⤵
    - Modifies Windows Firewall
    PID:3348
- - C:\Windows\SysWOW64\netsh.exe
    netsh advfirewall firewall delete rule name="IVC Server 4.36"
    3⤵
    - Modifies Windows Firewall
    PID:3996
- - C:\Windows\SysWOW64\netsh.exe
    netsh advfirewall firewall delete rule name="RTT Server 4.36"
    3⤵
    - Modifies Windows Firewall
    PID:3748
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -ExecutionPolicy Bypass -WindowStyle Hidden -File .\exclude.ps1 -FFFeatureOff
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1740

C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\Documents\Are.docx" /o ""
1⤵
PID:4428

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_stsbrywm.k1p.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe

Filesize
80KB

MD5
66034ab42eee7e5d2ba7139d668e8f37

SHA1
3a558e0b48e288a5d6980e3baa44b82481c2261c

SHA256
bd7cb674391cf7779570544ce2b38ab9af123d2e5b3d00bc2e531e0527c04bf4

SHA512
84cd7a3a33aa2f19f4b5f0e823906d982268f56bd81441d95ecc990f92c909b0f83dbdd6466a887075d450a8b0b802ca6d04a45ff7403918ac57e164159231d4

Download Submit
C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\exclude.ps1

Filesize
72B

MD5
0f3546149b2fac36cd382bcbf6c37a00

SHA1
9272a55e8822524162264249ec5eae42f846f3b3

SHA256
ce26a2d890ca44e188f7899265f3e9ceaa953389af684416475d6be7e212e06e

SHA512
abcb14c2b9db20c6d3ff48c674e1895d897a74aa8523ebe5a57080fc415f165cc0b4eee234b32b331f505a77ecc1526141ffbb141c4b6ccd6b6ec329efe8d9e5

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Office\Recent\index.dat

Filesize
202B

MD5
add56ec49f8f478e84a934606effef1c

SHA1
1262ae87ef755e40752740df90d21352d5fc81ec

SHA256
22e509cf2b7202fc6b04c3d9a1b137477f11471d58a48c1f9514f89450217327

SHA512
c095f193d221696f3b087c3f224a559ad0efe4852a5392c8a3ab03f80183beec2a8327892aa481c85f1bf8165b76a029555f250e0dd5f396c823feacff4c06f1

Download Submit
memory/1740-13-0x0000000004FD0000-0x0000000004FE0000-memory.dmp

Filesize
64KB

Download
memory/1740-12-0x0000000004FD0000-0x0000000004FE0000-memory.dmp

Filesize
64KB

Download
memory/1740-11-0x0000000073600000-0x0000000073DB0000-memory.dmp

Filesize
7.7MB

Download
memory/1740-10-0x0000000004E50000-0x0000000004E86000-memory.dmp

Filesize
216KB

Download
memory/1740-14-0x0000000005610000-0x0000000005C38000-memory.dmp

Filesize
6.2MB

Download
memory/1740-15-0x0000000005480000-0x00000000054A2000-memory.dmp

Filesize
136KB

Download
memory/1740-16-0x0000000005DB0000-0x0000000005E16000-memory.dmp

Filesize
408KB

Download
memory/1740-17-0x0000000005E20000-0x0000000005E86000-memory.dmp

Filesize
408KB

Download
memory/1740-27-0x0000000005F90000-0x00000000062E4000-memory.dmp

Filesize
3.3MB

Download
memory/1740-28-0x0000000006400000-0x000000000641E000-memory.dmp

Filesize
120KB

Download
memory/1740-29-0x0000000006450000-0x000000000649C000-memory.dmp

Filesize
304KB

Download
memory/1740-46-0x0000000007610000-0x00000000076B3000-memory.dmp

Filesize
652KB

Download
memory/1740-45-0x0000000004FD0000-0x0000000004FE0000-memory.dmp

Filesize
64KB

Download
memory/1740-48-0x0000000007740000-0x000000000775A000-memory.dmp

Filesize
104KB

Download
memory/1740-47-0x0000000007DA0000-0x000000000841A000-memory.dmp

Filesize
6.5MB

Download
memory/1740-49-0x00000000077B0000-0x00000000077BA000-memory.dmp

Filesize
40KB

Download
memory/1740-44-0x0000000004FD0000-0x0000000004FE0000-memory.dmp

Filesize
64KB

Download
memory/1740-43-0x00000000069F0000-0x0000000006A0E000-memory.dmp

Filesize
120KB

Download
memory/1740-50-0x00000000079D0000-0x0000000007A66000-memory.dmp

Filesize
600KB

Download
memory/1740-51-0x0000000007940000-0x0000000007951000-memory.dmp

Filesize
68KB

Download
memory/1740-33-0x000000006FA90000-0x000000006FADC000-memory.dmp

Filesize
304KB

Download
memory/1740-32-0x00000000075D0000-0x0000000007602000-memory.dmp

Filesize
200KB

Download
memory/1740-31-0x000000007EE30000-0x000000007EE40000-memory.dmp

Filesize
64KB

Download
memory/1740-52-0x0000000007970000-0x000000000797E000-memory.dmp

Filesize
56KB

Download
memory/1740-53-0x0000000007980000-0x0000000007994000-memory.dmp

Filesize
80KB

Download
memory/1740-55-0x00000000079B0000-0x00000000079B8000-memory.dmp

Filesize
32KB

Download
memory/1740-54-0x0000000007A70000-0x0000000007A8A000-memory.dmp

Filesize
104KB

Download
memory/1740-58-0x0000000073600000-0x0000000073DB0000-memory.dmp

Filesize
7.7MB

Download
memory/4428-63-0x00007FFDFE210000-0x00007FFDFE220000-memory.dmp

Filesize
64KB

Download
memory/4428-62-0x00007FFDFE210000-0x00007FFDFE220000-memory.dmp

Filesize
64KB

Download
memory/4428-61-0x00007FFDFE210000-0x00007FFDFE220000-memory.dmp

Filesize
64KB

Download
memory/4428-60-0x00007FFDFE210000-0x00007FFDFE220000-memory.dmp

Filesize
64KB

Download
memory/4428-59-0x00007FFDFE210000-0x00007FFDFE220000-memory.dmp

Filesize
64KB

Download
memory/4428-64-0x00007FFE3E190000-0x00007FFE3E385000-memory.dmp

Filesize
2.0MB

Download
memory/4428-67-0x00007FFE3E190000-0x00007FFE3E385000-memory.dmp

Filesize
2.0MB

Download
memory/4428-69-0x00007FFE3E190000-0x00007FFE3E385000-memory.dmp

Filesize
2.0MB

Download
memory/4428-72-0x00007FFE3E190000-0x00007FFE3E385000-memory.dmp

Filesize
2.0MB

Download
memory/4428-73-0x00007FFE3E190000-0x00007FFE3E385000-memory.dmp

Filesize
2.0MB

Download
memory/4428-71-0x00007FFE3E190000-0x00007FFE3E385000-memory.dmp

Filesize
2.0MB

Download
memory/4428-70-0x00007FFDFBBB0000-0x00007FFDFBBC0000-memory.dmp

Filesize
64KB

Download
memory/4428-68-0x00007FFE3E190000-0x00007FFE3E385000-memory.dmp

Filesize
2.0MB

Download
memory/4428-66-0x00007FFE3E190000-0x00007FFE3E385000-memory.dmp

Filesize
2.0MB

Download
memory/4428-65-0x00007FFE3E190000-0x00007FFE3E385000-memory.dmp

Filesize
2.0MB

Download
memory/4428-74-0x00007FFE3E190000-0x00007FFE3E385000-memory.dmp

Filesize
2.0MB

Download
memory/4428-77-0x00007FFE3E190000-0x00007FFE3E385000-memory.dmp

Filesize
2.0MB

Download
memory/4428-76-0x00007FFDFBBB0000-0x00007FFDFBBC0000-memory.dmp

Filesize
64KB

Download
memory/4428-78-0x00007FFE3E190000-0x00007FFE3E385000-memory.dmp

Filesize
2.0MB

Download
memory/4428-75-0x00007FFE3E190000-0x00007FFE3E385000-memory.dmp

Filesize
2.0MB

Download
memory/4428-80-0x00007FFE3E190000-0x00007FFE3E385000-memory.dmp

Filesize
2.0MB

Download
memory/4428-79-0x00007FFE3E190000-0x00007FFE3E385000-memory.dmp

Filesize
2.0MB

Download
memory/4428-81-0x00007FFE3E190000-0x00007FFE3E385000-memory.dmp

Filesize
2.0MB

Download
memory/4428-83-0x00007FFE3E190000-0x00007FFE3E385000-memory.dmp

Filesize
2.0MB

Download